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目的 探讨CT检查在小儿胸膜肺母细胞瘤(PPB)中的诊断价值,提高对其诊断的准确率.方法 收集经穿刺活检2例,手术3例病理证实的小儿肺母细胞瘤5例,对其CT表现进行回顾性分析.结果 患儿年龄22个月～11岁,左肺3例,右肺2例,均为单发,肿瘤均表现为胸腔内巨大囊性或囊实性肿块,增强扫描实性部分呈渐进性强化,有1例远处多发转移.结论 小儿胸膜肺母细胞瘤影像学表现缺乏特异性,综合CT表现,能提高诊断符合率,对部分病例可做出提示性诊断.“,”Objective To improve diagnostic accuracy of CT on pleuropulmonary blastoma.Methods The data of 5 patients with PPB confirmed by surgical and pathological results was retrospectively analyzed.Results The age was 22 months to 11 years,All 5 cases exhibited a single lesion,the tumors were localized at left lung 3 cases and right lung 2 cases,the tumors showed giant cystic or cystic solid mass,enhanced CT scan the solid part showed progressive enhancement,and one cases multiple metastasis.Conclusion PPB is lack of characteristic imaging features,and suggestive diagnosis can be made in some patients combined with CT.